31362400

素因数分解:

$2^5\times 5^2\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:416

約数の個数: 72

約数和(自身を含む): 77338800

約数和(自身を除く): 45976400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 197, 199, 200, 394, 398, 400, 788, 796, 800, 985, 995, 1576, 1592, 1970, 1990, 3152, 3184, 3940, 3980, 4925, 4975, 6304, 6368, 7880, 7960, 9850, 9950, 15760, 15920, 19700, 19900, 31520, 31840, 39203, 39400, 39800, 78406, 78800, 79600, 156812, 157600, 159200, 196015, 313624, 392030, 627248, 784060, 980075, 1254496, 1568120, 1960150, 3136240, 3920300, 6272480, 7840600, 15681200, 31362400]

約数ペア:

[(1, 31362400), (2, 15681200), (4, 7840600), (5, 6272480), (8, 3920300), (10, 3136240), (16, 1960150), (20, 1568120), (25, 1254496), (32, 980075), (40, 784060), (50, 627248), (80, 392030), (100, 313624), (160, 196015), (197, 159200), (199, 157600), (200, 156812), (394, 79600), (398, 78800), (400, 78406), (788, 39800), (796, 39400), (800, 39203), (985, 31840), (995, 31520), (1576, 19900), (1592, 19700), (1970, 15920), (1990, 15760), (3152, 9950), (3184, 9850), (3940, 7960), (3980, 7880), (4925, 6368), (4975, 6304)]